Thank you for all of your thoughts! I went to guitar center today and got a $35 usb to midi cable, attached to my laptop and I'm back in business. I had it running off of my laptop. I can't believe i'm so impressed with 1997 technology! I'm sure I won't need to upgrade for a while. I'm just happy to see it play twinkle twinkle little star! It's great to know that there are so many options with this system. Thanks for posting the link to the disklavierworld.blogspot.com. Wow, lots of midi files.
Thanks again for all the help.
Greg